diff --git a/ramls/acq-models b/ramls/acq-models
index e4f689161..b21f9479f 160000
--- a/ramls/acq-models
+++ b/ramls/acq-models
@@ -1 +1 @@
-Subproject commit e4f6891617f1e93b15abbbd10c492b24908d57b9
+Subproject commit b21f9479f43801b1872083c6edeada96e86ee6d2
diff --git a/src/main/java/org/folio/service/titles/TitlesService.java b/src/main/java/org/folio/service/titles/TitlesService.java
index 52b7f3be5..97f32c40f 100644
--- a/src/main/java/org/folio/service/titles/TitlesService.java
+++ b/src/main/java/org/folio/service/titles/TitlesService.java
@@ -13,6 +13,7 @@
 import java.util.Map;
 import java.util.function.Function;
 
+import org.apache.commons.lang3.StringUtils;
 import org.folio.orders.utils.HelperUtils;
 import org.folio.rest.core.RestClient;
 import org.folio.rest.core.models.RequestContext;
@@ -52,7 +53,7 @@ public Future<Title> createTitle(Title title, RequestContext requestContext) {
   }
 
   public Future<TitleCollection> getTitles(int limit, int offset, String query, RequestContext requestContext) {
-    return acquisitionsUnitsService.buildAcqUnitsCqlExprToSearchRecords("purchaseOrder.", requestContext)
+    return acquisitionsUnitsService.buildAcqUnitsCqlExprToSearchRecords(StringUtils.EMPTY, requestContext)
       .compose(acqUnitsCqlExpr -> {
         String resultQuery = acqUnitsCqlExpr;
         if (!isEmpty(query)) {